Answer:
The concentration of 
is 1.48 × 
M
The absolute uncertainty of ![[{H^{+}]](https://tex.z-dn.net/?f=%5B%7BH%5E%7B%2B%7D%5D)
is ±0.12 × M
The concentration of is written as 1.48(±0.12) × M
Explanation:
The pH of a solution is given by the formula below
pH = ![-log_{10}[{H^{+}]](https://tex.z-dn.net/?f=-log_%7B10%7D%5B%7BH%5E%7B%2B%7D%5D)
∴ ![[H^{+}] = 10^{-pH}](https://tex.z-dn.net/?f=%5BH%5E%7B%2B%7D%5D%20%3D%2010%5E%7B-pH%7D)
where is the concentration
From the question,
pH = 8.83±0.04
That is,
pH =8.83 and the uncertainty is ±0.04
First, we will determine from
![[{H^{+}] = 10^{-8.83}](https://tex.z-dn.net/?f=%5B%7BH%5E%7B%2B%7D%5D%20%3D%2010%5E%7B-8.83%7D)
![[{H^{+}] = 1.4791](https://tex.z-dn.net/?f=%5B%7BH%5E%7B%2B%7D%5D%20%3D%201.4791)
× M
![[{H^{+}] = 1.48](https://tex.z-dn.net/?f=%5B%7BH%5E%7B%2B%7D%5D%20%3D%201.48)
× M
The concentration of is 1.48 × M
The uncertainty of ( ![U_{[H^{+}] }](https://tex.z-dn.net/?f=U_%7B%5BH%5E%7B%2B%7D%5D%20%7D)
) from the equation is
![U_{[H^{+}] } = 2.303 \\](https://tex.z-dn.net/?f=U_%7B%5BH%5E%7B%2B%7D%5D%20%7D%20%3D%202.303%20%5C%5C)
× ![{[H^{+}] }](https://tex.z-dn.net/?f=%7B%5BH%5E%7B%2B%7D%5D%20%7D)
× 
Where is the uncertainty of
is the uncertainty of the pH
Hence,
= 2.303 × 1.4791 × × 0.04
= 1.36 × 
M
= 0.12 × M
Hence, the absolute uncertainty of is ±0.12 × M
<span>When a metal and a non-metal react, the metal tends to lose electrons and the non metal tends to gain electrons?</span>
Answer:
C). Electronegativity.
Explanation:
'Electronegativity' is described as the tendency or a measure of the ability of an atom or molecule to attract electrons that leads to the formation of chemical bonds. It is denoted by 'χ', a Greek letter. The elements like Fluorine having a very high rate of electronegativity, its atom would attract the electrons more strongly while the elements with lesser electronegativity like Cesium would possess a lesser tendency to attract electrons towards it in order to form a bond. Thus, <u>option C</u> is the correct answer.
What the first person said lol
